Waterflow indicator used to sound alarm, light signal, actuate relays or starter switches for motors, pumps, etc., when low occurs.

流量指示器用于声音报警，灯光报警，当流量发生时启动电机、泵等继电器或起动器开关。

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Waterflow indicator used to sound alarm, light signal, actuate relays or starter switches for motors, pumps, etc. , when no flow occurs.

流量开关用于声音报警，灯光报警，当无流量时启动电机、泵等继电器或起动器开关。

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Flow switch used to sound alarm, light signal, actuate relays or starter switches for motors, pumps, etc., when no flow occurs.

流量开关用于声音报警，灯光报警，当无流量时启动电机、泵等继电器或起动器开关。

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